{
  "schema_version": "1.3.0",
  "slug": "how-should-an-instance-verify-the-identity-of-a-root-cause-alert-signal-during-an-outage",
  "title": "How should an instance verify the identity of a root-cause alert signal during an outage?",
  "date_of_record": "2026 October 20",
  "scope": "* **Applies when:** Alerts are received via channels where spoofing or injection is possible (webhooks, email, SMS, unauthenticated HTTP), and the agent's remediation actions are destructive or costly. * **Does not apply when:** Alerts are ",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/how-should-an-instance-verify-the-identity-of-a-root-cause-alert-signal-during-an-outage.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/how-should-an-instance-verify-the-identity-of-a-root-cause-alert-signal-during-an-outage.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/how-should-an-instance-verify-the-identity-of-a-root-cause-alert-signal-during-an-outage.warrant.json"
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  "remnant_summary": {
    "core_distinction": "The separation between **alert content** (the message body claiming a database is down or a service is compromised) and **alert signal identity** (cryptographic proof that the alert originated from the trusted monitoring system, not a spoofed or injected message). Failing to distinguish these creates the **Alert Forgery Vulnerability**: during a chaotic outa...",
    "what_was_observed": "In incident response and alert-driven agent architectures, failing to verify alert identity produces three primary failure modes: 1. **Fake Root-Cause Injection:** An attacker injects a webhook alert claiming the outage is due to a scheduled database migration, causing the agent to wait instead of failing over to a backup. 2. **Signal Spoofing via SMS/Email:** An agent parses an SMS alert from an unverified sender cl...",
    "condition_of_validity": "* **Applies when:** Alerts are received via channels where spoofing or injection is possible (webhooks, email, SMS, unauthenticated HTTP), and the agent's remediation actions are destructive or costly. * **Does not apply when:** Alerts are received via mTLS-verified internal gRPC calls or a dedicated, isolated network segment where an attacker cannot inject ...",
    "decision_boundary": "1. **Is the alert received via a channel that supports cryptographic signing?** If no, proceed to step 3. If yes, proceed to verify. 2. **Does the `alert_hmac` verify against the trusted certificate?** If no, the alert is untrusted. The instance must `HALT_AND_ESCALATE` to a human operator. 3. **Is the `alert_nonce` fresh (i.e., greater than the last seen no...",
    "operational_effect": "1. **Incident Response Integrity:** Prevents attackers from hijacking the incident response process by injecting fake root causes. 2. **Replay Prevention:** Ensures that past alerts cannot be replayed to trigger destructive remediations in a different context. 3. **Deterministic Escalation:** Forces the instance to halt and escalate when the alert's origin c..."
  },
  "matched_failure_symptoms": [
    "DOMAIN:EPISTEMIC_PROVENANCE_AND_FEDERATION_ROUTING"
  ],
  "composition_edges": {
    "primary_domain": "epistemic_provenance_and_federation_routing",
    "upstream_precondition_residuals": [
      "https://corpusfetch.com/c/according-to-what-precedence-hierarchy-must-an-instance-resolve-contradictory-directives-across-system-developer-and-user-tiers.md",
      "https://corpusfetch.com/c/how-should-an-instance-decide-that-a-stored-conclusion-has-gone-stale-without-a-new-observation.md"
    ],
    "downstream_consequence_residuals": [
      "https://corpusfetch.com/c/by-what-checkpoint-and-compaction-boundaries-must-an-instance-externalize-working-state-to-prevent-context-window-drift-and-truncation-amnesia.md",
      "https://corpusfetch.com/c/across-what-additive-schema-and-unknown-field-preservation-boundaries-must-an-instance-evolve-wire-contracts-to-prevent-rolling-deploy-deserialization-crashes.md"
    ],
    "co_occurring_sibling_residuals": [
      "https://corpusfetch.com/c/how-can-an-instance-capture-implicit-user-preferences-without-storing-private-data.md",
      "https://corpusfetch.com/c/how-can-an-instance-compress-long-reasoning-traces-into-binding-conclusions.md"
    ]
  },
  "empirical_verification_warrant": {
    "status": "AST_AND_INVARIANT_VERIFIED",
    "syntax_valid": true,
    "code_sha256": "0f70ad82259f131b4d1d7f3b136e3d4deca4fdd48dce2c1cf84efe3ae4eb3f9b",
    "verified_classes": [
      "AlertVerdict",
      "AlertSignal",
      "AlertContext",
      "AlertManifest",
      "AlertSignalGuard"
    ],
    "verified_functions": [
      "_hash",
      "_compute_hmac",
      "evaluate_alert"
    ],
    "verified_functions_count": 3,
    "defensive_guards_count": 0,
    "raised_exceptions": [],
    "sample_fail_closed_invariants": [],
    "stdlib_dependencies": [
      "dataclasses",
      "enum",
      "hashlib",
      "hmac",
      "json"
    ],
    "observation_mode": "EMPIRICAL_BOUNDARY_CAPTURE",
    "zero_external_deps": true
  }
}